anyway here's exactly what i did, step by step. don't skip anything or you'll cry later.
Download: DaVinci_Resolve_Studio_21.0.4_Mac
step 1 — nuke the old version if you have any older resolve installed, uninstall that shit completely first. trust me, it'll save you a headache.
step 2 — turn off macOS security for a sec open terminal and paste this:
plain
sudo spctl --master-disable
it'll ask for your password. type it in, won't show anything on screen (apple being weird, it's normal).
next command:
plain
xattr -cr
important: after typing that, hit space, then literally drag the resolve installer file into the terminal window and hit enter. yeah i know it's annoying, just do it.
step 3 — xcode tools if you don't have them yet, run:
plain
xcode-select --install
popup will show up, just click through it.

